Definition
Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite
  
Trachyandesite is an extrusive igneous rock.
  
History
  
  
Origin
Unknown
  
Indonesia
  
Discoverer
Unknown
  
Unknown
  
Etymology
From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime
  
From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite
  
Class
Sedimentary Rocks
  
Igneous Rocks
  
Sub-Class
Durable Rock, Medium Hardness Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Volcanic
  
Volcanic
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Clastic or Non-Clastic
  
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular
  
Color
Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow
  
Black, Brown, Light to Dark Grey
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
No
  
Yes
  
Scratch Resistant
Yes
  
Yes
  
Stain Resistant
Yes
  
No
  
Wind Resistant
No
  
No
  
Acid Resistant
No
  
No
  
Appearance
Rounded and Rough
  
Dull and Soft
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Flooring, Interior Decoration
  
Countertops, Decorative Aggregates, Homes, Interior Decoration
  
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
  
As Building Stone, As Facing Stone, Garden Decoration
  
Other Architectural Uses
Not Yet Used
  
Curbing
  
Industry
  
  
Construction Industry
Cement Manufacture, Cobblestones, Landscaping
  
Building houses or walls, Cobblestones, for Road Aggregate, Rail Track Ballast, Roadstone
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts
  
Artifacts, Sculpture
  
Other Uses
  
  
Commercial Uses
Creating Artwork, Jewelry, Used in aquariums
  
Creating Artwork, Pottery
  
Types
Not Available
  
Basaltic Trachyandesite
  
Features
Available in lots of colors, Generally rough to touch, Very fine grained rock
  
Has High structural resistance against erosion and climate, Very fine grained rock
  
Archaeological Significance
  
  
Monuments
Not Yet Used
  
Not Yet Used
  
Famous Monuments
Not Applicable
  
Not Applicable
  
Sculpture
Not Yet Used
  
Used
  
Famous Sculptures
Not Applicable
  
Data Not Available
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Not Yet Used
  
Used
  
Fossils
Present
  
Absent
  
Formation
Oolites form when layers of calcite are deposited around a sand grain or fossil piece and are rolled around in calm water, which makes them round.
  
Trachyandesite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
  
Composition
  
  
Mineral Content
Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt
  
Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase
  
Compound Content
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO
  
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
  
Transformation
  
  
Metamorphism
No
  
Yes
  
Types of Metamorphism
Not Applicable
  
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
  
Weathering
Yes
  
Yes
  
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Chemical Erosion, Coastal Erosion
  
Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion
  
Physical Properties
  
  
Hardness
3-4
  
4-5
  
Grain Size
Fine Grained
  
Fine Grained
  
Fracture
Conchoidal
  
Conchoidal
  
Streak
White
  
Light to dark brown
  
Porosity
Less Porous
  
Less Porous
  
Luster
Pearly to Shiny
  
Earthy
  
Compressive Strength
Not Available
  
37.40 N/mm
2
  
28
Cleavage
Non-Existent
  
Perfect
  
Toughness
1
  
2.3
  
Specific Gravity
Not Available
  
2.8-3
  
Transparency
Opaque
  
Opaque
  
Density
Not Available
  
2.9-3.1 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
Not Available
  
0.84 kJ/Kg K
  
15
Resistance
Heat Resistant, Wear Resistant
  
Heat Resistant, Pressure Resistant, Wear Resistant
  
Deposits in Eastern Continents
  
  
Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
  
India, Russia
  
Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
  
South Africa
  
Europe
United Kingdom
  
Iceland
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
USA
  
Canada, USA
  
South America
Colombia
  
Brazil
  
Deposits in Oceania Continent
  
  
Australia
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula
  
Not Yet Found
  
All about Oolite and Trachyandesite Properties
Know all about Oolite and Trachyandesite properties here. All properties of rocks are important as they define the type of rock and its application. Oolite belongs to Sedimentary Rocks while Trachyandesite belongs to Igneous Rocks.Texture of Oolite is Clastic or Non-Clastic whereas that of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Oolite appears Rounded and Rough and Trachyandesite appears Dull and Soft. The luster of Oolite is pearly to shiny while that of Trachyandesite is earthy. Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors whereas Trachyandesite is available in black, brown, light to dark grey colors. The commercial uses of Oolite are creating artwork, jewelry, used in aquariums and that of Trachyandesite are creating artwork, pottery.